Note: This is an archival copy of Security Sun Alert 200071 as previously published on http://sunsolve.sun.com.|
Latest version of this security advisory is available from http://support.oracle.com as Sun Alert 1000055.1.
Java 2 Platform, Standard Edition
Date of Resolved Release
A buffer overflow vulnerability in the Java Web Start URL parsing code may allow an untrusted application to elevate its privileges. For example, an application may grant itself permissions to read and write local files or execute local applications with the privileges of the user running the Java Web Start application.
Sun acknowledges with thanks, Brett Moore of Security-Assessment.com for discovering and reporting this issue.
Sun also acknowledges eEye Digital Security for bringing this issue to our attention.
This issue can occur in the following releases (for Windows, Solaris, and Linux):
To determine the version of Java on a system, the following command can be run:
% java -version
Note: Java Web Start in SDK and JRE 1.4.x are not affected by this issue.
There are no reliable symptoms that would indicate the described issue has been exploited.
To reduce the likelihood of executing untrusted applications which may allow this issue to be exploited, Java Web Start applications may be disabled temporarily (until the updates or patches have been installed) as follows:
For Internet Explorer (Windows):
Note 1: On Microsoft Windows, applications may also be launched from the desktop icon or Start Menu if a shortcut was previously created for an application. Unknown applications should not be launched through the desktop icon or the Start Menu. Shortcuts can be removed by using the Java Web Start Application Manager through the "Application/Remove Shortcut" menu item. For more information, see:
Note 2: It is also possible to launch applications through the command line in Windows, Solaris, and Linux. Unknown applications should not be launched through the command line. Sites may consider renaming the Java Web Start launcher ("javaws.exe" for Windows and "javaws" for Solaris and Linux) to prevent Java Web Start from launching.
The launcher can be found at:
Solaris (if installed using pkg):
Linux (if installed using rpm):
This issue is addressed in the following releases (for Windows, Solaris, and Linux):
Java SE 6 is available for download at the following links:
Java SE 6 Update 2 for Solaris is available in the following patches:
J2SE 5.0 is available for download at the following link:
J2SE 5.0 Update 12 for Solaris is available in the following patches:
Note: When installing a new version of the product from a source other than a Solaris patch, it is recommended that the old affected versions be removed from your system. To remove old affected versions on the Windows platform, please see:
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